That's where Alzheimer's patients have a buildup of toxic proteins called amyloid.

在这个部分，阿尔茨海默病患者积累了一种叫做淀粉样蛋白的有毒蛋白质。

There could be other toxic proteins or lost connections among brain cells that actually cause the disease.

可能是其他有毒蛋白质导致了这种疾病，或者是脑细胞之间失去联系导致了这种疾病。

A lack of sleep can also increase the development of a toxic protein in the brain that is called beta-amyloid and that is associated with Alzheimer's disease.

睡眠不足还会增加大脑中的一种毒性蛋白质，这种蛋白质被称为β-淀粉样蛋白，与阿尔茨海默氏病有关。